JP2013538419A - Secondary battery management device - Google Patents

Secondary battery management device Download PDF

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JP2013538419A
JP2013538419A JP2013524024A JP2013524024A JP2013538419A JP 2013538419 A JP2013538419 A JP 2013538419A JP 2013524024 A JP2013524024 A JP 2013524024A JP 2013524024 A JP2013524024 A JP 2013524024A JP 2013538419 A JP2013538419 A JP 2013538419A
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secondary battery
power supply
unit
power
battery management
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JP5622935B2 (en
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ジェ−ドン・パク
テ−ジュン・イ
ジュ−ヨン・キム
ジョン−キュン・コ
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LG Chem Ltd
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LG Chem Ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B60L58/15—Preventing overcharging
    • G—PHYSICS
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    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • G01R31/3835—Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
    • H—ELECTRICITY
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    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H—ELECTRICITY
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    • H—ELECTRICITY
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    • H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
    • H02J7/0032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits disconnection of loads if battery is not under charge, e.g. in vehicle if engine is not running
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    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/04—Cutting off the power supply under fault conditions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/20—Electric propulsion with power supplied within the vehicle using propulsion power generated by humans or animals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B60L58/14—Preventing excessive discharging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/21—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having the same nominal voltage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/25—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by controlling the electric load
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/10—Control circuit supply, e.g. means for supplying power to the control circuit
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
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    • H02J2310/40—The network being an on-board power network, i.e. within a vehicle
    • H02J2310/48—The network being an on-board power network, i.e. within a vehicle for electric vehicles [EV] or hybrid vehicles [HEV]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
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    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00306—Overdischarge protection
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract

本発明による二次電池管理装置は、二次電池の充電または放電電流の流れを開閉する電流制御スイッチ部と、充放電装置との接続可否に従って下記電源供給ラインに電源導通状態と電源遮断状態とを選択的に提供するコネクター部と、上記充放電装置との通信インターフェースを提供する通信端子部と、二次電池から電源の供給を受け電源を必要とする部品に印加する電源部と、電源印加スイッチ部が設けられ、上記二次電池から供給される電源を上記電源部に印加または遮断する電源供給ラインと、上記コネクター部を通じた上記充放電装置の接続時、上記電源印加スイッチ部にターンオン信号を印加するスイッチ制御部と、上記電源部と連結され、電源印加可否に従って二次電池の管理動作を開始または終了する制御部とを含む。  The secondary battery management device according to the present invention includes a current control switch unit that opens and closes a charge or discharge current flow of the secondary battery, and a power supply conduction state and a power supply cutoff state in the following power supply line according to whether the charge / discharge device can be connected A connector portion that selectively provides power, a communication terminal portion that provides a communication interface with the charge / discharge device, a power supply portion that receives power from a secondary battery and applies power to a component that requires power, and power application A switch unit is provided, and when the power supply line for applying or cutting off the power supplied from the secondary battery to the power source unit and the charging / discharging device through the connector unit are connected, a turn-on signal is sent to the power application switch unit. And a control unit that is connected to the power supply unit and starts or ends the management operation of the secondary battery according to whether or not the power supply can be applied.

Description

本発明は、二次電池管理装置に関するものであって、さらに詳しくは、二次電池の管理動作が必要でない状態では電源の消費を完全に遮断することができる二次電池管理装置に関する。   The present invention relates to a secondary battery management device, and more particularly, to a secondary battery management device that can completely cut off power consumption when a secondary battery management operation is not required.

近年、ノートパソコンや携帯電話などのようなモバイル装置、電気自転車、電気自動車、ハイブリッド自動車のような各種の動力移動手段、停電時に電源を供給するための電力バックアップ装置、大容量の電力を貯蔵し他の装置に電力を供給する大容量電力貯蔵装置などに二次電池が幅広く使われている。   In recent years, mobile devices such as notebook computers and mobile phones, various power transfer means such as electric bicycles, electric vehicles, and hybrid vehicles, power backup devices for supplying power in the event of a power failure, and storing large amounts of power Secondary batteries are widely used in large-capacity power storage devices that supply power to other devices.

多種多様な電池の中でリチウムを用いた電池は、他の種類の電池に比べてエネルギー密度及び作動電圧が高く、寿命が長いとの長所から最も多く使われている。   Among a wide variety of batteries, a battery using lithium is most often used because it has a higher energy density and operating voltage and has a longer life than other types of batteries.

二次電池は、ＢＭＳ（Ｂａｔｔｅｒｙ Ｍａｎａｇｅｍｅｎｔ Ｓｙｓｔｅｍ）と呼ばれる電池管理装置と結合されて使われる。電池管理装置は、二次電池の充電と放電とを適正なレベルで制御し、過放電、過充電、過電流などの異常状況が発生すれば、二次電池の充電や放電を中止し二次電池の爆発や性能の低下を防止する動作を遂行する。   The secondary battery is used in combination with a battery management device called BMS (Battery Management System). The battery management device controls the charging and discharging of the secondary battery at an appropriate level.If an abnormal situation such as overdischarge, overcharge, or overcurrent occurs, the battery management device stops charging or discharging the secondary battery and recharges the secondary battery. Perform operations to prevent battery explosion and performance degradation.

二次電池管理装置は、上述のような動作を遂行するために二次電池から電源の供給を受けるマイクロプロセッサーを含む。マイクロプロセッサーは、単位時間当り消耗する電力が大きくないので、二次電池の使用が中止された状態でも動作状態をそのまま維持する。すなわち、二次電池が充電モードまたは放電モードでないときにも、マイクロプロセッサーは二次電池の電圧、電流、温度などをモニタリングしながら持続的に二次電池の管理動作を維持する。したがって、二次電池が長期間使われなければ、マイクロプロセッサーによる電力消耗によって二次電池の充電状態（Ｓｔａｔｅ Ｏｆ Ｃｈａｒｇｅ：ＳＯＣ）が持続的に低くなる。   The secondary battery management apparatus includes a microprocessor that receives power from the secondary battery to perform the above-described operation. Since the power consumed per unit time is not large, the microprocessor maintains the operating state even when the use of the secondary battery is stopped. That is, even when the secondary battery is not in the charge mode or the discharge mode, the microprocessor continuously maintains the management operation of the secondary battery while monitoring the voltage, current, temperature, etc. of the secondary battery. Therefore, if the secondary battery is not used for a long period of time, the state of charge (SOC) of the secondary battery is continuously lowered due to power consumption by the microprocessor.

このようなＳＯＣの低下は無駄な電力の消耗という面で望ましくない。二次電池が充電または放電状態でなければ、事実上二次電池管理装置の動作が必要でないからである。また、二次電池のＳＯＣ低下は、いくつかの特殊な状況で二次電池を過放電状態にしてしまう問題を誘発し得る。例えば、二次電池を製造するときには、一定のレベルのＳＯＣ（例：３０％）になるまで二次電池を充電させる。しかし、二次電池が製造された後在庫管理倉庫や輸出用コンテナに長期間保管されるか、流通期間が長くなって二次電池の使用開始が遅くなれば、二次電池管理装置によって二次電池の電力がすべて消耗してしまい、二次電池が過放電状態に到逹する恐れがある。   Such a decrease in SOC is undesirable in terms of wasted power consumption. This is because the operation of the secondary battery management device is virtually unnecessary unless the secondary battery is in a charged or discharged state. In addition, a decrease in the SOC of the secondary battery may induce a problem that causes the secondary battery to be overdischarged in some special situations. For example, when manufacturing a secondary battery, the secondary battery is charged until the SOC reaches a certain level (eg, 30%). However, if the secondary battery is stored in an inventory management warehouse or export container for a long time after the secondary battery is manufactured, or if the secondary battery starts to be used due to a long distribution period, the secondary battery management device All the power of the battery may be consumed, and the secondary battery may reach an overdischarged state.

したがって、本発明が属する技術分野では、二次電池の充電及び放電をモニタリングすべき時点とそうでない時点を感知して二次電池管理装置に動作電源を印加／遮断することを制御することができる技術が求められている。   Therefore, in the technical field to which the present invention belongs, it is possible to control when the secondary battery management device is applied / cut off by detecting when charging and discharging of the secondary battery should be monitored and when not. Technology is required.

本発明は、上述のような従来技術の問題を解決するために創案されたものであって、充放電装置との相互接続または充放電装置からの通信要求信号の印加を感知して、二次電池から供給される電力の使用と二次電池の管理動作を開始することができる二次電池管理装置を提供することにその目的がある。   The present invention has been devised to solve the above-described problems of the prior art, and detects secondary connection with a charge / discharge device or application of a communication request signal from the charge / discharge device. An object of the present invention is to provide a secondary battery management device that can start use of power supplied from the battery and management operation of the secondary battery.

本発明の他の目的は、充放電装置との相互接続解除または充放電装置からの通信要求信号の印加中断を感知して、二次電池から供給される電力使用の中止と二次電池の管理動作を中断することができる二次電池管理装置を提供することにその目的がある。   Another object of the present invention is to detect the cancellation of the interconnection with the charging / discharging device or the interruption of the application of the communication request signal from the charging / discharging device, and stop the use of the power supplied from the secondary battery and manage the secondary battery. An object of the present invention is to provide a secondary battery management device capable of interrupting operation.

本発明のまた他の目的は、二次電池が過放電状態に到逹した場合、二次電池と充放電装置との電気的連結を解除し、二次電池から供給される電力使用を中止することができる二次電池管理装置を提供することにその目的がある。   Another object of the present invention is to release the electrical connection between the secondary battery and the charge / discharge device and stop using the power supplied from the secondary battery when the secondary battery reaches an overdischarged state. It is an object of the present invention to provide a secondary battery management device that can perform such a process.

上述のような技術的課題を達成するための本発明による二次電池管理装置は、二次電池の充電電流または放電電流の流れを開閉する電流制御スイッチ部と、充放電装置との接続可否に従って下記電源供給ラインに電源導通状態と電源遮断状態とを選択的に提供するコネクター部と、上記充放電装置との通信インターフェースを提供する通信端子部と、二次電池から電源の供給を受け電源を必要とする部品に印加する電源部と、電源印加スイッチ部が設けられ上記二次電池から供給される電源を上記電源部に印加または遮断する電源供給ラインと、上記コネクター部を通じた上記充放電装置の接続時、上記通信端子部を通じて通信要求信号の受信を感知して上記電源印加スイッチ部にターンオン信号を印加するスイッチ制御部と、上記電源部と連結され電源印加可否に従って二次電池の管理動作を開始または終了する制御部とを含む。   The secondary battery management device according to the present invention for achieving the technical problem as described above is based on whether or not the current control switch unit that opens and closes the flow of the charging current or discharging current of the secondary battery and whether the charging / discharging device is connected. A connector part that selectively provides a power supply conduction state and a power interruption state to the following power supply line, a communication terminal part that provides a communication interface with the charging / discharging device, and a power supply that receives supply of power from the secondary battery A power supply unit for applying to a required component, a power supply switch line provided with a power supply application switch unit for applying or cutting off the power supplied from the secondary battery to the power supply unit, and the charging / discharging device through the connector unit A switch control unit that senses reception of a communication request signal through the communication terminal unit and applies a turn-on signal to the power application switch unit, and the power unit Is binding and a control unit to start or end the management operations of the secondary battery according to the power applied propriety.

本発明の他の側面によれば、上記スイッチ制御部が通信要求信号の受信を感知して電源印加スイッチ部をターンオンさせる動作を遂行する場合、上記コネクター部は充放電装置との接続インターフェースのみを提供しても構わない。逆に、上記コネクター部が充放電装置との接続可否に従って電源供給ラインに電源導通状態と電源遮断状態とを選択的に提供する場合、上記スイッチ制御部は電源印加スイッチ部にターンオン信号を印加する構成を備えなくても構わない。   According to another aspect of the present invention, when the switch control unit senses reception of a communication request signal and performs an operation of turning on the power application switch unit, the connector unit has only a connection interface with the charge / discharge device. May be provided. On the other hand, when the connector unit selectively provides the power supply line with a power conducting state and a power shutoff state according to whether the charging / discharging device can be connected, the switch control unit applies a turn-on signal to the power application switch unit. The configuration may not be provided.

望ましくは、上記制御部は、二次電池の管理動作を開始した後、上記電流制御スイッチ部をターンオンさせる。   Preferably, the control unit turns on the current control switch unit after starting the management operation of the secondary battery.

望ましくは、上記電源供給ラインは、上記コネクター部に備えられた端子に独立して連結された第１電源供給ラインと第２電源供給ラインとを含み、上記第１電源供給ラインと上記第２電源供給ラインとは、上記充放電装置の対応のコネクターに備えられた短絡端子との連結可否に従って電気的に連結または分離される。   Preferably, the power supply line includes a first power supply line and a second power supply line that are independently connected to terminals provided in the connector unit, the first power supply line and the second power supply. The supply line is electrically connected or separated according to whether or not it can be connected to a short-circuit terminal provided in a corresponding connector of the charge / discharge device.

本発明において、上記スイッチ制御部は、上記コネクター部を通じた上記充放電装置の接続解除時に、上記通信端子部を通じた通信要求信号の受信停止を感知して上記ターンオン信号の印加を停止し得る。   In the present invention, the switch control unit may detect the stop of reception of the communication request signal through the communication terminal unit and stop applying the turn-on signal when the charge / discharge device is disconnected through the connector unit.

選択的に、上記スイッチ制御部は、二次電池の充電電流または放電電流が流れるラインの電圧を測定し、電圧が予め設定したレベル以上であれば、上記電源印加スイッチ部にターンオン信号を印加し得る。   Optionally, the switch control unit measures a voltage of a line through which a charging current or a discharging current of the secondary battery flows, and applies a turn-on signal to the power application switch unit if the voltage is equal to or higher than a preset level. obtain.

望ましくは、本発明による二次電池管理装置は、二次電池のセル電圧を測定して上記制御部に出力するセル電圧測定部をさらに含み、上記制御部は、特定のセルの電圧またはすべてのセルの電圧が過放電状態に到逹したことを感知すれば、上記電流制御スイッチ部をターンオフさせた後、上記電源印加スイッチ部をターンオフさせる。   Preferably, the secondary battery management apparatus according to the present invention further includes a cell voltage measurement unit that measures a cell voltage of the secondary battery and outputs the cell voltage to the control unit, and the control unit includes a voltage of a specific cell or all of the voltages. If it is detected that the voltage of the cell has reached an overdischarge state, the current control switch unit is turned off, and then the power application switch unit is turned off.

本発明の一側面によれば、二次電池管理装置と充放電装置との相互接続及び相互接続の解除によって二次電池管理装置の動作を開始／終了することで、充放電装置の接続解除が維持される間に二次電池管理装置が二次電池の電力を消耗することが防止できる。本発明の他の側面によれば、充放電装置から伝送される通信要求信号の感知可否に従って二次電池管理装置の動作を開始／終了することで、充放電装置の接続解除が維持される間に二次電池管理装置が二次電池の電力を消耗することが防止できる。   According to one aspect of the present invention, the connection / disconnection of the charge / discharge device can be released by starting / ending the operation of the secondary battery management device by interconnecting the secondary battery management device and the charge / discharge device and releasing the interconnection. It is possible to prevent the secondary battery management device from consuming the power of the secondary battery while being maintained. According to another aspect of the present invention, while the connection / disconnection of the charging / discharging device is maintained by starting / ending the operation of the secondary battery management device according to whether or not the communication request signal transmitted from the charging / discharging device is sensed. In addition, the secondary battery management device can be prevented from consuming the power of the secondary battery.

本発明のまた他の側面によれば、二次電池の過放電による保護動作を遂行した後、二次電池管理装置の動作を中断することで、過放電保護動作の遂行後に二次電池管理装置が二次電池の電力を消耗することが防止できる。   According to another aspect of the present invention, after performing a protection operation due to overdischarge of the secondary battery, the operation of the secondary battery management device is interrupted, thereby performing the secondary battery management device after performing the overdischarge protection operation. However, it is possible to prevent the power consumption of the secondary battery from being consumed.

本明細書に添付される下記の図面は本発明の望ましい実施例を例示するものであって、発明の詳細な説明とともに本発明の技術思想をさらに理解させる役割を果たすものであるため、本発明はそのような図面に記載された事項にのみ限定されて解釈されてはならない。   The following drawings attached to the present specification illustrate preferred embodiments of the present invention and serve to further understand the technical idea of the present invention together with the detailed description of the invention. Should not be construed as limited to the matter set forth in such drawings.

本発明の実施例による二次電池管理装置の構成と共に、二次電池管理装置が充放電装置と相互接続された状態を示すブロック図である。1 is a block diagram illustrating a state in which a secondary battery management device is interconnected with a charge / discharge device together with a configuration of a secondary battery management device according to an embodiment of the present invention. 本発明の実施例による二次電池管理装置と充放電装置との相互接続が解除された状態を示すブロック図である。It is a block diagram which shows the state by which the interconnection of the secondary battery management apparatus by the Example of this invention and the charging / discharging apparatus was cancelled | released. 本発明の実施例による充放電装置の構成を概略的に示すブロック図である。It is a block diagram which shows roughly the structure of the charging / discharging apparatus by the Example of this invention.

以下、添付した図面を参照しながら本発明の望ましい実施例を詳しく説明する。これに先立って、本明細書及び請求範囲に使われた用語や単語は通常的や辞書的な意味に限定して解釈されてはならず、発明者は自らの発明を最善の方法で説明するために用語の概念を適切に定義することができるという原則に則して、本発明の技術的思想に符合する意味と概念とに解釈されなければならない。従って、本明細書に記載された実施例は本発明の最も望ましい一実施例に過ぎず、本発明の技術的思想の全てを代弁するものではないため、本出願時点においてこれらに代替できる多様な均等物と変形例があり得ることを理解しなければならない。   Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the specification and claims should not be construed to be limited to ordinary or lexicographic meanings, and the inventor will best explain his invention. Therefore, in accordance with the principle that the concept of a term can be appropriately defined, it should be interpreted as a meaning and a concept consistent with the technical idea of the present invention. Therefore, the embodiment described in the present specification is only the most preferred embodiment of the present invention, and does not represent all the technical ideas of the present invention. It should be understood that there can be equivalents and variations.

図１は、本発明の実施例による二次電池管理装置２０の構成と共に、二次電池管理装置２０が充放電装置３０と接続された状態を示すブロック図である。   FIG. 1 is a block diagram illustrating a state in which the secondary battery management device 20 is connected to the charge / discharge device 30 together with the configuration of the secondary battery management device 20 according to the embodiment of the present invention.

図１を参照すれば、二次電池管理装置２０は、複数のセルを備えた二次電池１０と結合されて二次電池１０の充電と放電とを制御し、過充電、過放電、過電流などの異常状況から二次電池を保護する機能を果たす。   Referring to FIG. 1, the secondary battery management device 20 is combined with a secondary battery 10 having a plurality of cells to control charging and discharging of the secondary battery 10, and overcharge, overdischarge, overcurrent. It serves to protect the secondary battery from abnormal situations such as.

二次電池管理装置２０は、電流制御スイッチ部２１、コネクター部２２、電源供給ライン２３ａ、２３ｂ、及び制御部２４を含む。   The secondary battery management device 20 includes a current control switch unit 21, a connector unit 22, power supply lines 23 a and 23 b, and a control unit 24.

電流制御スイッチ部２１は、制御部２４の統制に従って二次電池１０の充電電流または放電電流が流れる経路を開閉する。電流制御スイッチ部２１がターンオンされれば、充電モードでは、充放電装置３０から充電電流が二次電池１０側へと流れ、放電モードでは、二次電池１０から放電電流が充放電装置３０側へと流れる。逆に、電流制御スイッチ部２１がターンオフされれば、充電モードでは、二次電池１０側へと流れる充電電流が遮断され、放電モードでは、充放電装置３０側へと流れる放電電流が遮断される。電流制御スイッチ部２１は、電界効果トランジスター（ＦＥＴ）素子のような半導体素子やリレー素子などで具現できるが、本発明が電流制御スイッチ部２１の種類によって限定されるものではない。   The current control switch unit 21 opens and closes a path through which the charging current or discharging current of the secondary battery 10 flows according to the control of the control unit 24. If the current control switch unit 21 is turned on, the charging current flows from the charging / discharging device 30 to the secondary battery 10 side in the charging mode, and the discharging current from the secondary battery 10 to the charging / discharging device 30 side in the discharging mode. And flow. Conversely, if the current control switch unit 21 is turned off, the charging current flowing to the secondary battery 10 side is cut off in the charging mode, and the discharging current flowing to the charging / discharging device 30 side is cut off in the discharging mode. . The current control switch unit 21 can be implemented by a semiconductor element such as a field effect transistor (FET) element or a relay element, but the present invention is not limited by the type of the current control switch unit 21.

コネクター部２２は、充放電装置３０との機械的な接続インターフェースを提供する。従って、コネクター部２２は、充放電装置３０側に備えられた対応のコネクター部３１と結合される。コネクター部２２と対応のコネクター部３１とは、それぞれメスコネクター及びオスコネクター、またはその反対であり得る。コネクター部２２と対応のコネクター部３１とが形成する結合構造は、異種の機器間に電気信号を伝達するために用いられ得るコネクターの結合構造であれば、いずれでも採用可能である。コネクター部２２は、充電電流または放電電流が流れる高電位ライン（パック＋）及び低電位ライン（パック−）が接続される端子２２１、２２２と、高電位ライン（パック＋）から分岐された第１電源供給ライン２３ａが接続される端子２２３と、二次電池１０から供給される電源が印加される部品と連結された第２電源供給ライン２３ｂが接続される端子２２４とを含む。そして、対応のコネクター部３１は、上記高電位ライン（パック＋）及び低電位ライン（パック−）と対応する充放電装置３０側のラインが接続される端子３１１、３１２と、コネクター２２及び対応のコネクター３１が相互接続されたとき、第１電源供給ライン２３ａと第２電源供給ライン２３ｂとを電気的に連結させる短絡端子３１３とを含む。コネクター２２と対応のコネクター３１とが接続解除されれば、短絡端子３１３によって形成された第１電源供給ライン２３ａと第２電源供給ライン２３ｂとの電気的連結は自動的に解除される。そうすると、二次電池１０から供給される電源が二次電池管理装置２０に印加されないので、二次電池管理装置２０の動作が自動的に中断される。   The connector unit 22 provides a mechanical connection interface with the charge / discharge device 30. Therefore, the connector part 22 is combined with the corresponding connector part 31 provided on the charge / discharge device 30 side. The connector portion 22 and the corresponding connector portion 31 may be a female connector and a male connector, respectively, or vice versa. As the connection structure formed by the connector part 22 and the corresponding connector part 31, any connection structure that can be used to transmit an electric signal between different kinds of devices can be adopted. The connector 22 includes terminals 221 and 222 to which a high potential line (pack +) and a low potential line (pack−) through which a charging current or a discharging current flows, and a first branched from the high potential line (pack +). A terminal 223 to which the power supply line 23a is connected and a terminal 224 to which a second power supply line 23b connected to a component to which power supplied from the secondary battery 10 is applied are connected. The corresponding connector unit 31 includes terminals 311 and 312 to which the line on the charge / discharge device 30 side corresponding to the high potential line (pack +) and the low potential line (pack−) is connected, the connector 22 and the corresponding line. The connector 31 includes a short-circuit terminal 313 that electrically connects the first power supply line 23a and the second power supply line 23b when the connectors 31 are connected to each other. When the connection between the connector 22 and the corresponding connector 31 is released, the electrical connection between the first power supply line 23a and the second power supply line 23b formed by the short-circuit terminal 313 is automatically released. Then, since the power supplied from the secondary battery 10 is not applied to the secondary battery management device 20, the operation of the secondary battery management device 20 is automatically interrupted.

図２は、二次電池管理装置２０と充放電装置３０とが互いに分離されることで、対応のコネクター３１側の短絡端子３１３によって形成された第１電源供給ライン２３ａと第２電源供給ライン２３ｂとの電気的連結が解除された様子を示す図面である。   In FIG. 2, the secondary battery management device 20 and the charge / discharge device 30 are separated from each other, so that the first power supply line 23a and the second power supply line 23b formed by the short-circuit terminals 313 on the corresponding connector 31 side. It is drawing which shows a mode that electrical connection with was cancelled | released.

以下、コネクター２２と対応のコネクター３１との相互結合時、短絡端子３１３を通じて第１電源供給ライン２３ａと第２電源供給ライン２３ｂとが電気的に連結されて二次電池１０の電源が二次電池管理装置２０に供給できる状態を「電源導通状態」と称する。また、コネクター２２と対応のコネクター３１との相互結合解除時、第１電源供給ライン２３ａと第２電源供給ライン２３ｂとの電気的連結が解除されて二次電池１０の電源が二次電池管理装置２０に供給できない状態を「電源遮断状態」と称する。ひいては、コネクター２２と対応のコネクター３１との結合可否に従って電源導通状態と電源遮断状態とが決定されるので、コネクター２２が電源供給ライン２３ａ、２３ｂに電源導通状態と電源遮断状態とを提供すると理解しても構わない。   Hereinafter, when the connector 22 and the corresponding connector 31 are mutually coupled, the first power supply line 23a and the second power supply line 23b are electrically connected through the short-circuit terminal 313, and the power supply of the secondary battery 10 is the secondary battery. A state that can be supplied to the management apparatus 20 is referred to as a “power supply conduction state”. Further, when the mutual coupling between the connector 22 and the corresponding connector 31 is released, the electrical connection between the first power supply line 23a and the second power supply line 23b is released, and the power supply of the secondary battery 10 is supplied to the secondary battery management device. A state in which the power supply 20 cannot be supplied is referred to as a “power-off state”. As a result, since the power supply conduction state and the power supply cutoff state are determined according to whether or not the connector 22 and the corresponding connector 31 are coupled, it is understood that the connector 22 provides the power supply line 23a, 23b with the power supply conduction state and the power supply cutoff state. It doesn't matter.

電源供給ライン２３ａ、２３ｂに電源導通状態と電源遮断状態とを提供する方式は、上記のものに限定されるのではない。従って、コネクター２２と対応のコネクター３１との接続または接続解除によって第１電源供給ライン２３ａと第２電源供給ライン２３ｂとが電気的に連結されるか連結解除されることが具現可能な構成であれば、いずれでも本発明の範囲に属すると理解しなければならない。例えば、コネクター２２と対応のコネクター３１とが互いに結合される面に第１電源供給ライン２３ａと第２電源供給ライン２３ｂとの間の連結をスイッチングする機械的リレーの接点を設け、コネクター２２と対応のコネクター３１とが結合されれば、リレーの接点が連結され、コネクター２２と対応のコネクター３１とが結合解除されれば、リレーの接点が解除される方式も採用し得る。   The method of providing the power supply lines 23a and 23b with the power supply conduction state and the power supply cutoff state is not limited to the above. Accordingly, the first power supply line 23a and the second power supply line 23b can be electrically connected or disconnected by connecting or disconnecting the connector 22 and the corresponding connector 31. In any case, it should be understood that they belong to the scope of the present invention. For example, a contact point of a mechanical relay for switching the connection between the first power supply line 23a and the second power supply line 23b is provided on the surface where the connector 22 and the corresponding connector 31 are coupled to each other, and corresponds to the connector 22 If the connector 31 is connected, the relay contact is connected, and if the connector 22 and the corresponding connector 31 are released, the relay contact is released.

コネクター２２と対応のコネクター３１との相互接続によって電源導通状態になれば、二次電池管理装置２０に含まれた各種の部品の中で電源を必要とする部品に電源を供給するＢＭＳ電源部２５に二次電池１０から供給される電源が印加される。逆に、コネクター２２と対応のコネクター３１との相互接続解除によって電源遮断状態になれば、ＢＭＳ電源部２５に二次電池１０から供給される電源の印加が遮断される。   When the power supply is in a conductive state due to the interconnection between the connector 22 and the corresponding connector 31, the BMS power supply unit 25 that supplies power to the components that require power among the various components included in the secondary battery management device 20. The power supplied from the secondary battery 10 is applied to the battery. On the other hand, if the power is cut off by releasing the interconnection between the connector 22 and the corresponding connector 31, the application of the power supplied from the secondary battery 10 to the BMS power supply unit 25 is cut off.

制御部２４は、電源導通状態になれば、ＢＭＳ電源部２５を通じて動作電源の印加を受けて二次電池１０の管理動作を開始する。すなわち、制御部２４は、二次電池の管理動作に必要なプログラムを起動させた後、電流制御スイッチ部２１をターンオンさせる。その後、制御部２４は、二次電池１０の充放電を制御し、二次電池１０に対する各種の保護動作を遂行する。一方、制御部２４は、電源遮断状態になれば、ＢＭＳ電源部２５から動作電源の供給を受けることができない。従って、制御部２４は、二次電池１０に対する管理動作を中断する。これによって、電源遮断状態では、二次電池管理装置２０の動作による二次電池１０の電力消耗が防止される。制御部２４は、マイクロプロセッサーのような半導体チップで具現できるが、本発明がこれに限定されるものではない。   When the power supply is turned on, the control unit 24 receives the operation power from the BMS power supply unit 25 and starts the management operation of the secondary battery 10. That is, the control unit 24 activates a program necessary for the management operation of the secondary battery, and then turns on the current control switch unit 21. Thereafter, the control unit 24 controls charging / discharging of the secondary battery 10 and performs various protection operations for the secondary battery 10. On the other hand, the control unit 24 cannot receive operation power from the BMS power supply unit 25 when the power supply is cut off. Therefore, the control unit 24 interrupts the management operation for the secondary battery 10. Thereby, in the power shut-off state, power consumption of the secondary battery 10 due to the operation of the secondary battery management device 20 is prevented. The control unit 24 can be implemented by a semiconductor chip such as a microprocessor, but the present invention is not limited to this.

必須ではないが、二次電池管理装置２０は、充放電装置３０と通信信号を送受信することができる通信端子部２８をさらに含み得る。二次電池管理装置２０に通信端子部２８が備えられる場合、充放電装置３０には対応の通信端子部３２が備えられ、通信端子部２８は、対応の通信端子部３２と相互接続または相互接続解除されることが望ましい。通信端子部２８は、対応の通信端子部３２と接続されて通信インターフェースを形成する。   Although not essential, the secondary battery management device 20 may further include a communication terminal unit 28 that can transmit and receive communication signals to and from the charge / discharge device 30. When the secondary battery management device 20 includes the communication terminal unit 28, the charge / discharge device 30 includes the corresponding communication terminal unit 32, and the communication terminal unit 28 is interconnected or interconnected with the corresponding communication terminal unit 32. It is desirable to be released. The communication terminal unit 28 is connected to the corresponding communication terminal unit 32 to form a communication interface.

制御部２４は、通信端子部２８と対応の通信端子部３２との結合を通じて形成された通信インターフェースを通じて充放電装置３０と周期的に通信を遂行することができる。すなわち、充放電装置３０は、一定の周期で通信要求信号を通信インターフェースを通じて二次電池管理装置２０に伝送することができる。そうすると、制御部２４は、通信要求信号を周期的に受信した後、充放電装置３０が必要とするデータを通信インターフェースを通じて伝送する。制御部２４が伝送できるデータとしては、二次電池１０の電圧、充電電流または放電電流の大きさ、二次電池１０の温度、二次電池１０の電圧及び電流プロファイル、ＳＯＣ（Ｓｔａｔｅ Ｏｆ Ｃｈａｒｇｅ）などが挙げられる。しかし、本発明は、通信インターフェースを通じて伝送される情報の種類によって限定されるものではない。   The control unit 24 can periodically communicate with the charging / discharging device 30 through a communication interface formed by coupling the communication terminal unit 28 and the corresponding communication terminal unit 32. That is, the charging / discharging device 30 can transmit a communication request signal to the secondary battery management device 20 through the communication interface at a constant cycle. If it does so, the control part 24 will transmit the data which the charging / discharging apparatus 30 requires through a communication interface, after receiving a communication request signal periodically. The data that can be transmitted by the control unit 24 includes the voltage of the secondary battery 10, the magnitude of the charging current or the discharging current, the temperature of the secondary battery 10, the voltage and current profile of the secondary battery 10, SOC (State Of Charge), and the like. Is mentioned. However, the present invention is not limited by the type of information transmitted through the communication interface.

代案的な実施例で、二次電池管理装置２０は、通信端子部２８を通じて通信要求信号が受信されるか否かに従って二次電池１０に対する管理動作を開始する。すなわち、二次電池管理装置２０は、通信端子部２８を通じて通信要求信号が受信されれば、二次電池１０から電源供給ライン２３ａ、２３ｂを通じて動作電源の供給を受けて動作を開始する。   In an alternative embodiment, the secondary battery management device 20 starts a management operation for the secondary battery 10 according to whether a communication request signal is received through the communication terminal unit 28. That is, when the communication request signal is received through the communication terminal unit 28, the secondary battery management device 20 receives operation power from the secondary battery 10 through the power supply lines 23a and 23b and starts operation.

上述のような機能を具現するために、二次電池管理装置２０は、第２電源供給ライン２３ｂ上に設けられた電源印加スイッチ部２６をさらに含み得る。もちろん、電源印加スイッチ部２６は、第１電源供給ライン２３ａに設けられても構わない。電源印加スイッチ部２６は、電界効果トランジスターのような半導体素子やリレースイッチなどに具現できる。しかし、本発明が電源印加スイッチ部２６の種類によって限定されるのではない。また、二次電池管理装置２０は、通信端子部２８を通じて充放電装置３０から印加される通信要求信号の受信を感知し、電源印加スイッチ部２６にターンオン信号を印加するスイッチ制御部２７をさらに含み得る。二次電池管理装置２０と充放電装置３０との接続解除によって通信端子部２８を通じて通信要求信号が受信されなければ、スイッチ制御部２７は、これを感知し電源印加スイッチ部２６にターンオン信号の印加を中断する。そうすると、電源印加スイッチ部２６がターンオフされてＢＭＳ電源部２５に二次電池１０から供給される電源が印加されないので、二次電池管理装置２０の動作が中断されて二次電池１０の電力消耗が防止される効果がある。   In order to implement the function as described above, the secondary battery management device 20 may further include a power application switch unit 26 provided on the second power supply line 23b. Of course, the power application switch unit 26 may be provided in the first power supply line 23a. The power application switch unit 26 can be implemented as a semiconductor element such as a field effect transistor or a relay switch. However, the present invention is not limited by the type of the power application switch unit 26. The secondary battery management device 20 further includes a switch control unit 27 that senses reception of a communication request signal applied from the charging / discharging device 30 through the communication terminal unit 28 and applies a turn-on signal to the power application switch unit 26. obtain. If the communication request signal is not received through the communication terminal unit 28 due to the disconnection of the secondary battery management device 20 and the charge / discharge device 30, the switch control unit 27 detects this and applies a turn-on signal to the power application switch unit 26. Interrupt. Then, the power supply switch unit 26 is turned off and the power supplied from the secondary battery 10 is not applied to the BMS power supply unit 25. Therefore, the operation of the secondary battery management device 20 is interrupted and the power consumption of the secondary battery 10 is reduced. There is an effect to be prevented.

必須ではないが、スイッチ制御部２７は、二次電池１０の充電電流または放電電流が流れる高電位ライン（パック＋）の電圧を感知し、電圧が適正なレベルであれば、電源印加スイッチ部２６にターンオン信号を印加し得る。ここで、適正なレベルは予め設定できる。   Although not essential, the switch control unit 27 senses the voltage of the high potential line (pack +) through which the charging current or discharging current of the secondary battery 10 flows, and if the voltage is at an appropriate level, the power application switch unit 26. A turn-on signal can be applied to. Here, an appropriate level can be set in advance.

二次電池管理装置２０は、二次電池１０の電圧をモニタリングして二次電池１０のすべてのセルの電圧または特定のセルの電圧が放電下限値まで低下した場合、過放電保護動作を遂行した後動作を中止することができる。このために、二次電池管理装置２０は、二次電池１０に含まれた各セルの電圧を測定し制御部２４に出力するセル電圧測定部２９をさらに含み得る。このような場合、制御部２４は、セル電圧測定部２９によって測定された各セル電圧データから二次電池１０のすべてのセルの電圧または特定のセルの電圧が放電下限値まで低下して過放電状態が誘発されたか否かが判別できる。そして、過放電状態が誘発されたと判別されれば、電流制御スイッチ部２１をターンオフさせて放電電流の流れを遮断した後、スイッチ制御部２７を制御して電源印加スイッチ部２６をターンオフさせる。そうすると、ＢＭＳ電源部２５に供給されていた動作電源が遮断されることで、二次電池管理装置２０の動作が中断され、二次電池１０の電力消耗が防止される効果がある。   The secondary battery management device 20 monitors the voltage of the secondary battery 10 and performs the overdischarge protection operation when the voltage of all the cells of the secondary battery 10 or the voltage of a specific cell falls to the discharge lower limit value. The post-operation can be stopped. For this purpose, the secondary battery management device 20 may further include a cell voltage measurement unit 29 that measures the voltage of each cell included in the secondary battery 10 and outputs the measured voltage to the control unit 24. In such a case, the control unit 24 overdischarges the voltage of all cells of the secondary battery 10 or the voltage of a specific cell from the cell voltage data measured by the cell voltage measurement unit 29 to the discharge lower limit value. It can be determined whether or not the state has been triggered. If it is determined that an overdischarge state has been induced, the current control switch unit 21 is turned off to cut off the flow of the discharge current, and then the switch control unit 27 is controlled to turn off the power application switch unit 26. If it does so, the operation | movement power supply supplied to the BMS power supply part 25 will be interrupted | blocked, operation | movement of the secondary battery management apparatus 20 will be interrupted, and there exists an effect which the power consumption of the secondary battery 10 is prevented.

充放電装置３０は、充電モードでは二次電池１０に充電電流を提供し、放電モードでは二次電池１０から放電電流の供給を受ける装置である。   The charging / discharging device 30 is a device that supplies a charging current to the secondary battery 10 in the charging mode, and receives a discharging current from the secondary battery 10 in the discharging mode.

図３は、充放電装置３０の一実施例を示すブロック図である。   FIG. 3 is a block diagram showing an embodiment of the charge / discharge device 30.

図３を参照すれば、充放電装置３０は、充電電流を提供するために商用交流電源３３の供給を受けて充電電流を生成することができる充電ユニット３４を含む。選択的に、充放電装置３０は、商用交流電源３３の供給を受けて直流電源を生成し、自己負荷または外部負荷３７に供給する定電流供給ユニット３５をさらに含み得る。選択的に、充放電装置３０は、二次電池管理装置２０側に電池の状態情報を要求して伝送され、伝送された情報を有無線通信網を通じてモニタリングサーバーのような外部の管理装置に伝送する通信ユニット３６を含み得る。   Referring to FIG. 3, the charging / discharging device 30 includes a charging unit 34 that can receive the supply of the commercial AC power supply 33 and generate the charging current to provide the charging current. Alternatively, the charging / discharging device 30 may further include a constant current supply unit 35 that receives a supply of the commercial AC power supply 33 to generate a DC power supply and supplies the DC power supply to the self-load or the external load 37. Optionally, the charging / discharging device 30 requests and transmits the battery status information to the secondary battery management device 20 side, and transmits the transmitted information to an external management device such as a monitoring server through a wired / wireless communication network. Communication unit 36 may be included.

必須ではないが、二次電池管理装置２０と充放電装置３０とは相互連動して負荷３７に対する電源バックアップシステムを構成し得る。すなわち、普段には、充放電装置３０は、商用交流電源３３の供給を受け、直流電源に変換した後、負荷３７に印加する。また、これとは並列的に、充放電装置３０は、商用交流電源３３が供給する交流電流を直流電流に変換して二次電池１０に供給することで、二次電池１０を充電する。一方、停電などによって商用交流電源３３の供給が遮断されれば、充放電装置３０は、二次電池１０から放電電流の供給を受け、これを負荷３７が必要とする適正なレベルの直流電流に変換した後負荷３７に印加する。   Although not essential, the secondary battery management device 20 and the charging / discharging device 30 may constitute a power backup system for the load 37 in conjunction with each other. That is, usually, the charging / discharging device 30 receives supply of the commercial AC power supply 33, converts it to a DC power supply, and then applies it to the load 37. In parallel with this, the charging / discharging device 30 charges the secondary battery 10 by converting the alternating current supplied by the commercial alternating-current power supply 33 into a direct current and supplying it to the secondary battery 10. On the other hand, if the supply of the commercial AC power supply 33 is interrupted due to a power failure or the like, the charging / discharging device 30 receives the supply of the discharge current from the secondary battery 10 and converts this to the appropriate level of DC current required by the load 37. After the conversion, the load 37 is applied.

上述のような機能を具現するために、二次電池管理装置２０は、高電位ライン（パック＋）の電圧をモニタリングし、停電によって電力が供給されていないと判断されれば、電流制御スイッチ部２１を放電モードで動作させることで、二次電池１０から充放電装置３０側へと放電電流を供給する。放電電流の供給が続けられれば、二次電池１０の充電状態が放電下限値まで落ちるようになり、このような場合、二次電池管理装置１０の制御部２４は電流制御スイッチ部２１をターンオフさせ、スイッチ制御部２７を統制して電源印加スイッチ部２６をターンオフさせることで、二次電池管理装置２０の動作自体を停止させる。そうすると、二次電池１０の電力がそれ以上消耗しない効果が発生する。   In order to implement the function as described above, the secondary battery management device 20 monitors the voltage of the high potential line (pack +), and if it is determined that power is not supplied due to a power failure, the current control switch unit By operating 21 in a discharge mode, a discharge current is supplied from the secondary battery 10 to the charge / discharge device 30 side. If the supply of the discharge current is continued, the state of charge of the secondary battery 10 falls to the discharge lower limit value. In such a case, the control unit 24 of the secondary battery management device 10 turns off the current control switch unit 21. Then, the operation of the secondary battery management device 20 is stopped by controlling the switch control unit 27 to turn off the power application switch unit 26. If it does so, the effect that the electric power of the secondary battery 10 will not be consumed any more will generate | occur | produce.

上述した実施例によれば、二次電池管理装置２０側のコネクター２２と充放電装置３０の対応のコネクター３１とが相互接続されるか相互接続の解除に従って、二次電池管理装置２０の動作の開始または終了を基本にし、選択的に、充放電装置３０から通信端子部２８に受信される通信要求信号の受信を感知して二次電池管理装置２０の動作が開始または終了され得ることを説明した。   According to the embodiment described above, the operation of the secondary battery management device 20 is performed according to whether the connector 22 on the secondary battery management device 20 side and the corresponding connector 31 of the charge / discharge device 30 are interconnected or the interconnection is released. Explained that the operation of the secondary battery management device 20 can be started or ended by sensing reception of a communication request signal received from the charge / discharge device 30 to the communication terminal unit 28 based on start or end. did.

しかし、その反対の実施例も可能である。すなわち、二次電池管理装置２０側の通信端子部２８と充放電装置３０の対応の通信端子部３２とが相互接続されるか相互接続の解除に従って、二次電池管理装置２０の動作の開始または終了を基本にし、選択的に、二次電池管理装置２０側のコネクター２２と充放電装置３０の対応のコネクター３１とが相互接続されるか相互接続が解除されることに従って、二次電池管理装置２０の動作を開始または終了させることも可能である。   However, the opposite embodiment is also possible. That is, when the communication terminal unit 28 on the secondary battery management device 20 side and the corresponding communication terminal unit 32 of the charge / discharge device 30 are interconnected or the interconnection is released, the operation of the secondary battery management device 20 is started or Based on the termination, the secondary battery management device is selectively connected in accordance with whether the connector 22 on the secondary battery management device 20 side and the corresponding connector 31 of the charge / discharge device 30 are interconnected or disconnected. It is also possible to start or end 20 operations.

また、コネクター２２と対応のコネクター３１との相互接続と相互接続の解除とを利用した二次電池管理装置２０のオン・オフ制御と、通信端子部２８を通じた通信要求信号の受信可否に従う二次電池管理装置２０のオン・オフ制御とは、何れか一方のみを選択して適用しても良く、二つのオン・オフ制御方式を共に適用することもできることは本発明が属する技術分野で通常の知識を持つ者に自明である。   Further, the secondary battery management device 20 is turned on / off using the interconnection between the connector 22 and the corresponding connector 31 and the release of the interconnection, and the secondary according to whether the communication request signal can be received through the communication terminal unit 28. The on / off control of the battery management device 20 may be applied by selecting only one of them, and the two on / off control methods can be applied together in the technical field to which the present invention belongs. It is obvious to those who have knowledge.

本発明によれば、二次電池管理装置から充放電装置が接続解除されれば、電源供給ラインを通じて二次電池から電源が供給されないので、二次電池が長時間放置されても二次電池の電力が消耗することを防止することができる。また、二次電池管理装置と充放電装置との接続が維持された状態で長時間放置されても二次電池の電圧が一定のレベルまで低下すれば、電源供給ラインを通じて二次電池から供給されていた電源が遮断されるので、二次電池が過放電されることが防止できる。ひいては、停電状況が発生すれば、二次電池の放電によって充放電装置に電力が供給されるので、充放電装置が一定の時間正常に作動する。しかし、二次電池の放電によって二次電池の電圧が一定のレベルまで落ちれば、二次電池管理装置の電源消耗が中断されるので、停電状況で二次電池が過放電されることが防止できる。そして、停電が解除されれば、商用交流電源によって充放電装置が作動を始めながら通信端子部を通じて通信要求信号が受信され、高電位端子（パック＋）にも適正なレベルの電圧が維持されるので、二次電池管理装置が動作を始めて二次電池の充電及び保護動作を開始する。一方、二次電池が納品される前には二次電池管理装置に充放電装置が接続されていない状態であるので、二次電池管理装置に電源の印加が遮断されて二次電池の電力の消耗が防止できる。上述したすべての実施例において、二次電池１０の充電電流または放電電流が流れる高電位ライン（パック＋）の電圧をモニタリングし、電圧が適正なレベルであれば、二次電池管理装置２０の動作状態を維持する制御方式を選択的に適用できることは本発明が属する技術分野で通常の知識を持つ者に自明である。   According to the present invention, if the charging / discharging device is disconnected from the secondary battery management device, power is not supplied from the secondary battery through the power supply line. It is possible to prevent power consumption. In addition, if the voltage of the secondary battery drops to a certain level even if it is left for a long time with the connection between the secondary battery management device and the charge / discharge device maintained, it is supplied from the secondary battery through the power supply line. Since the power supply that has been cut off is cut off, the secondary battery can be prevented from being overdischarged. As a result, if a power failure occurs, power is supplied to the charging / discharging device by discharging the secondary battery, so that the charging / discharging device operates normally for a certain period of time. However, if the voltage of the secondary battery drops to a certain level due to the discharge of the secondary battery, the power consumption of the secondary battery management device is interrupted, so it is possible to prevent the secondary battery from being overdischarged in the event of a power failure. . And if a power failure is cancelled | released, a communication request signal will be received through a communication terminal part, while a charging / discharging apparatus will start operation | movement by commercial AC power supply, and the voltage of an appropriate level is maintained also at a high potential terminal (pack +). Therefore, the secondary battery management device starts operating and starts charging and protecting the secondary battery. On the other hand, since the charge / discharge device is not connected to the secondary battery management device before the secondary battery is delivered, the application of power to the secondary battery management device is cut off and the power of the secondary battery is reduced. Consumption can be prevented. In all the embodiments described above, the voltage of the high potential line (pack +) through which the charging current or discharging current of the secondary battery 10 flows is monitored. If the voltage is at an appropriate level, the operation of the secondary battery management device 20 is performed. It is obvious to those skilled in the art to which the present invention belongs that the control method for maintaining the state can be selectively applied.

また、上述したすべての実施例において、二次電池管理装置２０の制御部２４とスイッチ制御部２７とは個別の構成要素として説明されたが、これは機能上の区分に過ぎないため、一つの構成要素として統合できることは本発明が属する技術分野で通常の知識を持つ者に自明である。   Moreover, in all the embodiments described above, the control unit 24 and the switch control unit 27 of the secondary battery management device 20 have been described as separate components, but this is only a functional category, It is obvious to those skilled in the art to which the present invention belongs that it can be integrated as a component.

また、上述した実施例において、コネクター部２２と通信端子部２８とは個別の構成要素として分離されていると説明した。しかし、コネクター部２２と通信端子部２８とは一つの構成要素として統合し得る。すなわち、コネクター部２２に通信端子部２８を統合させることもでき、その反対も可能である。このような場合、コネクター部２２と通信端子部２８とは一つの構成要素に含まれた副次的な構成要素として理解されるべきであることは自明である。   Further, in the above-described embodiments, it has been described that the connector portion 22 and the communication terminal portion 28 are separated as individual components. However, the connector part 22 and the communication terminal part 28 can be integrated as one component. That is, the communication terminal portion 28 can be integrated with the connector portion 22 and vice versa. In such a case, it is obvious that the connector portion 22 and the communication terminal portion 28 should be understood as secondary components included in one component.

以上のように、本発明は、たとえ限定された実施例と図面とによって説明されたとしても、本発明はこれによって限定されず、本発明が属する技術分野において通常の知識を持つ者により本発明の技術思想と特許請求範囲の均等範囲内で多様な修正及び変形が可能なのは言うまでもない。   As described above, even if the present invention is described with reference to the limited embodiments and drawings, the present invention is not limited thereto, and the present invention can be obtained by those having ordinary knowledge in the technical field to which the present invention belongs. It goes without saying that various modifications and variations can be made within the scope of the technical idea and the scope of claims.

１０ 二次電池
２０ 二次電池管理装置
３０ 充放電装置
２１ 電流制御スイッチ部
２２ コネクター部
２３ 電源供給ライン
２４ 制御部
２５ ＢＭＳ電源部
２６ 電源印加スイッチ部
２７ スイッチ制御部
２８ 通信端子部
２９ セル電圧測定部
３１ 対応のコネクター部
３２ 対応の通信端子部
３３ 商用交流電源
３４ 充電ユニット
３５ 定電流供給ユニット
３６ 通信ユニット
３７ 負荷 DESCRIPTION OF SYMBOLS 10 Secondary battery 20 Secondary battery management apparatus 30 Charging / discharging apparatus 21 Current control switch part 22 Connector part 23 Power supply line 24 Control part 25 BMS power supply part 26 Power supply switch part 27 Switch control part 28 Communication terminal part 29 Cell voltage measurement Portion 31 Corresponding connector portion 32 Corresponding communication terminal portion 33 Commercial AC power supply 34 Charging unit 35 Constant current supply unit 36 Communication unit 37 Load

Claims (16)

二次電池の充電電流または放電電流の流れを開閉する電流制御スイッチ部と、
充放電装置との接続及び接続解除時にそれぞれ電源導通状態及び電源遮断状態を提供するコネクター部と、
二次電池から電源の供給を受け電源を必要とする部品に印加する電源部と、
上記電源導通状態と上記電源遮断状態のスイッチングによって二次電池から供給される電源を上記電源部に印加または遮断する電源供給ラインと、
上記電源部と連結され電源印加可否に従って二次電池の管理動作を開始または終了する制御部とを含むことを特徴とする二次電池管理装置。 A current control switch unit that opens and closes the flow of the charging current or discharging current of the secondary battery;
A connector part that provides a power supply continuity state and a power supply cut-off state at the time of connection and disconnection with the charge / discharge device,
A power supply unit that receives power from a secondary battery and applies it to components that require power;
A power supply line for applying or shutting off the power supplied from the secondary battery by switching between the power conducting state and the power shutoff state, and
A secondary battery management device comprising: a control unit connected to the power source unit and starting or ending a management operation of the secondary battery according to whether or not power can be applied. 上記制御部は、二次電池の管理動作を開始した後、上記電流制御スイッチ部をターンオンさせることを特徴とする請求項１に記載の二次電池管理装置。   The secondary battery management apparatus according to claim 1, wherein the control unit turns on the current control switch unit after starting the management operation of the secondary battery. 上記電源供給ラインは、上記コネクター部に備えられた端子に独立して連結された第１電源供給ラインと第２電源供給ラインとを含み、
上記第１電源供給ラインと上記第２電源供給ラインとは、上記充放電装置の対応のコネクターに備えられた短絡端子との連結可否に従って電気的に連結または分離されることを特徴とする請求項１に記載の二次電池管理装置。 The power supply line includes a first power supply line and a second power supply line that are independently connected to terminals provided in the connector unit,
The said 1st power supply line and the said 2nd power supply line are electrically connected or isolate | separated according to the connection possibility with the short circuit terminal with which the corresponding connector of the said charging / discharging apparatus was equipped. 2. The secondary battery management device according to 1. 上記電源供給ライン上に設けられた制御信号によって上記電源部に電源を印加または遮断する電源印加スイッチ部をさらに含むことを特徴とする請求項１に記載の二次電池管理装置。   The secondary battery management apparatus according to claim 1, further comprising a power application switch unit configured to apply or cut off power to the power source unit according to a control signal provided on the power supply line. 上記充放電装置との通信インターフェースを提供する通信端子部と、
上記コネクター部を通じた上記充放電装置の接続時、上記通信端子部を通じて通信要求信号の受信を感知して上記電源印加スイッチ部にターンオン信号を印加するスイッチ制御部をさらに含むことを特徴とする請求項４に記載の二次電池管理装置。 A communication terminal unit providing a communication interface with the charge / discharge device;
And a switch control unit configured to sense reception of a communication request signal through the communication terminal unit and apply a turn-on signal to the power application switch unit when the charge / discharge device is connected through the connector unit. Item 5. The secondary battery management device according to Item 4. 上記スイッチ制御部は、上記コネクター部を通じた上記充放電装置の接続解除時に、上記通信端子部を通じた通信要求信号の受信停止を感知して上記ターンオン信号の印加を停止することを特徴とする請求項５に記載の二次電池管理装置。   The switch control unit, when disconnecting the charging / discharging device through the connector unit, senses a stop of reception of a communication request signal through the communication terminal unit and stops applying the turn-on signal. Item 6. The secondary battery management device according to Item 5. 上記スイッチ制御部は、二次電池の充電電流または放電電流が流れるラインの電圧を測定し、電圧が適正なレベルであれば、上記電源印加スイッチ部にターンオン信号を印加することを特徴とする請求項５に記載の二次電池管理装置。   The switch control unit measures a voltage of a line through which a charging current or a discharging current of the secondary battery flows, and applies a turn-on signal to the power application switch unit if the voltage is at an appropriate level. Item 6. The secondary battery management device according to Item 5. 上記二次電池のセル電圧を測定して上記制御部に出力するセル電圧測定部をさらに含み、
上記制御部は、特定のセルの電圧またはすべてのセルの電圧が過放電状態に到逹したことを感知すれば、上記電流制御スイッチ部をターンオフさせた後、上記電源印加スイッチ部をターンオフさせることを特徴とする請求項４に記載の二次電池管理装置。 A cell voltage measuring unit that measures the cell voltage of the secondary battery and outputs the cell voltage to the control unit;
If the control unit detects that the voltage of a specific cell or the voltage of all cells has reached an overdischarge state, the control unit turns off the current control switch unit and then turns off the power supply switch unit. The secondary battery management apparatus according to claim 4. 二次電池の充電電流または放電電流の流れを開閉する電流制御スイッチ部と、
充放電装置との接続インターフェースを提供するコネクター部と、
上記充放電装置との通信インターフェースを提供する通信端子部と、
二次電池から電源の供給を受け電源を必要とする部品に印加する電源部と、
電源印加スイッチ部が設けられ上記二次電池から供給される電源を上記電源部に印加または遮断する電源供給ラインと、
上記コネクター部を通じた上記充放電装置の接続時、上記通信端子部を通じて通信要求信号の受信を感知して上記電源印加スイッチ部にターンオン信号を印加するスイッチ制御部と、
上記電源部と連結され電源印加可否に従って二次電池の管理動作を開始または終了する制御部とを含むことを特徴とする二次電池管理装置。 A current control switch unit that opens and closes the flow of the charging current or discharging current of the secondary battery;
A connector unit that provides a connection interface with the charge / discharge device;
A communication terminal unit providing a communication interface with the charge / discharge device;
A power supply unit that receives power from a secondary battery and applies it to components that require power;
A power supply switch line provided with a power supply switch section for applying or cutting off the power supplied from the secondary battery to the power supply section;
A switch control unit that senses reception of a communication request signal through the communication terminal unit and applies a turn-on signal to the power application switch unit when the charging / discharging device is connected through the connector unit;
A secondary battery management device comprising: a control unit connected to the power source unit and starting or ending a management operation of the secondary battery according to whether or not power can be applied. 上記制御部は、上記二次電池の管理動作を開始した後、上記電流制御スイッチ部をターンオンさせることを特徴とする請求項９に記載の二次電池管理装置。   The secondary battery management apparatus according to claim 9, wherein the control unit turns on the current control switch unit after starting the management operation of the secondary battery. 上記電源供給ラインは、上記コネクター部に備えられた端子に独立して連結された第１電源供給ラインと第２電源供給ラインとを含み、
上記第１電源供給ラインと上記第２電源供給ラインとは、上記充放電装置の対応のコネクターに備えられた短絡端子との連結可否に従って電気的に連結または分離されることを特徴とする請求項９に記載の二次電池管理装置。 The power supply line includes a first power supply line and a second power supply line that are independently connected to terminals provided in the connector unit,
The said 1st power supply line and the said 2nd power supply line are electrically connected or isolate | separated according to the connection possibility with the short circuit terminal with which the corresponding connector of the said charging / discharging apparatus was equipped. The secondary battery management device according to 9. 上記電源印加スイッチ部は、上記第１電源供給ラインまたは上記第２電源供給ラインに設けられることを特徴とする請求項１１に記載の二次電池管理装置。   The secondary battery management device according to claim 11, wherein the power application switch unit is provided in the first power supply line or the second power supply line. 上記コネクター部は、上記充放電装置の接続及び接続解除時にそれぞれ電源導通状態及び電源遮断状態を提供し、
上記電源供給ラインは、上記電源導通状態と上記電源遮断状態とのスイッチングによって上記電源部に電源を印加または遮断することを特徴とする請求項９に記載の二次電池管理装置。 The connector portion provides a power supply continuity state and a power supply cut-off state, respectively, when the charge / discharge device is connected and disconnected.
The secondary battery management apparatus according to claim 9, wherein the power supply line applies or shuts off power to the power supply unit by switching between the power supply conduction state and the power supply cutoff state. 上記スイッチ制御部は、上記コネクター部を通じた上記充放電装置の接続解除時に、上記通信端子部を通じた通信要求信号の受信停止を感知して上記ターンオン信号の印加を停止することを特徴とする請求項９に記載の二次電池管理装置。   The switch control unit, when disconnecting the charging / discharging device through the connector unit, senses a stop of reception of a communication request signal through the communication terminal unit and stops applying the turn-on signal. Item 12. The secondary battery management device according to Item 9. 上記スイッチ制御部は、二次電池の充電電流または放電電流が流れるラインの電圧を測定し、電圧が適正なレベルであれば、上記電源印加スイッチ部にターンオン信号を印加することを特徴とする請求項９に記載の二次電池管理装置。   The switch control unit measures a voltage of a line through which a charging current or a discharging current of the secondary battery flows, and applies a turn-on signal to the power application switch unit if the voltage is at an appropriate level. Item 12. The secondary battery management device according to Item 9. 上記二次電池のセル電圧を測定して上記制御部に出力するセル電圧測定部をさらに含み、
上記制御部は、特定のセルの電圧またはすべてのセルの電圧が過放電状態に到逹したことを感知すれば、上記電流制御スイッチ部をターンオフさせた後、上記電源印加スイッチ部をターンオフさせることを特徴とする請求項９に記載の二次電池管理装置。 A cell voltage measuring unit that measures the cell voltage of the secondary battery and outputs the cell voltage to the control unit;
If the control unit detects that the voltage of a specific cell or the voltage of all cells has reached an overdischarge state, the control unit turns off the current control switch unit and then turns off the power supply switch unit. The secondary battery management device according to claim 9.
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